The "plain vanilla" cars are the ones with the highest theft rate: http://www.forbes.com/sites/jimgorzelany/2014/08/18/the-most...

It has been this way for about two decades. It is much easier for thieves to slice-and-dice a common vehicle into hard-to-trace parts, since the hot parts will disappear into a sea of legitimate used and reconditioned parts. High-end cars are comparatively rare, and thus harder to dispose of discreetly.